diff --git a/resources/switch.php b/resources/switch.php
index dfd0893c51..373e1b8cab 100644
--- a/resources/switch.php
+++ b/resources/switch.php
@@ -1432,7 +1432,8 @@ if (!function_exists('save_switch_xml')) {
 				save_setting_xml();
 			}
 			if (file_exists($_SERVER["PROJECT_ROOT"]."/app/modules/app_config.php")) {
-				$module new modules;;
+				require_once $_SERVER["DOCUMENT_ROOT"].PROJECT_PATH."app/modules/resources/classes/modules.php";
+				$module new modules;
 				$module->xml();
 			}
 			if (file_exists($_SERVER["PROJECT_ROOT"]."/app/vars/app_config.php")) {